Ladies, now you can be even more satisfied because of the fact that you are the reason for the intelligence levels of your children. Sorry gentlemen, your genes were not enough to make that mark.

This means that if you want to search for the ideal sperm donor you should not be worried about their IQ levels. The reason is because your children will actually inherit this from you.

It is more likely that women transmit the intelligence genes to the children and the reason is because they have two of the X chromosome, while men have one.

Additionally, scientists think that genes for advanced cognitive functions that will be inherited by the father can be deactivated.

It is believed that the conditioned genes can work only if they derive from the mother in certain cases and the father in other cases. It is believed that intelligence is one of the conditioned genes which come from the mother.

The Relationship of Intelligence and Genetics

Since always it has always been obvious that intelligence is actually hereditary. However, the main question for this was who or where it is inherited from.

Everything comes down to the positioning of the intelligence genes. Gillian Turner is a professor and according to him Lehrke is the first person who said that the genes for coding intellectual function could be on the X chromosome.

This research for the relationship between the X chromosome and the intelligence is usually a point of speculation for many scientists.

One study from Cambridge University that was conducted in 1884 on mice is maybe one of the first experiments and it revealed how important the mother’s X chromosome on the intelligence was.

They used mice in order to prove that maternal and paternal genes might be sourced in the brain. What they did not find were lasting results which showed that these genes can be found in the part of the brain which is related to intelligence.

This proof deficiency encouraged additional research on X chromosomes and intelligence.

New Studies

Delgado says that the University of Ulm in Germany conducted a study about the genes that were involved in brain damage and discovered that many of them, mostly those which are associated to cognitive abilities, were on the X chromosome.

It was a revolutionary discovery and it proved that intelligence is directly associated to the genes of the mother.

There was another study that was conducted at The Medical Research Council in Scotland and according to it the best predictor of intelligence was actually the mother’s IQ. They concluded this after they finished the prolonged experiment on 12,686 young children between the ages of 14-22 years.

You can discover more information about this study in the video below:

Even though there are different studies that support the fact that genetics is main source of the genetics of the child, it is not possible to ignore the environmental factors which can have an influence over their IQ.

Nurture VS Nature Debate

The nurture (environmental factors) VS the nature (genes) debate is widely deliberated for centuries. It started back in the 17th century and it was researched by many famous philosophers including Aristotle.

It is obvious from the start that in order to become intelligent adults, children will require both healthy genes and unique nurturing.

The Genetic Home Reference says that the environment and genes have influence on each other and it is a big challenge to tear apart the effects of the environment from the effects of the genetics.
We know that nurture and nature are equally important and we still ask the question: what is more important?

A lot of people say that nurture is more important than nature; there are different experiments that include adopted, twins or similarly situated children and they prove that if there is no proper nurturing, regardless of your genes you will achieve only have a certain IQ level.

There are different revolutionary studies about how the IQ and social status are directly linked and Deary says that there is a positive connection between the intelligence test scores that were done in the childhood and the social position achieved later in life. This proves that the nurture is as important as nature.